Recording mechanism.



J. T. HOWIESON.

RECORDING MECHANISM. APPLICATION FILED APR. 6. 1916.

4 SHEETSSHEET I.

Patenfed May 7,1918.

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RECORDENG MECHANISM APPLICATION FILED APR. 6. \916.

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RECORDING MECHANISM.

APPLICATION FILED APR. 6, 1916.

Patented May 7, 1918 4 SHEETS-SHEET 3.

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RECORDING MECHANISM. APPLICATIOINUHLED APR. 6. 1916.

Patented May '7, 1918.

4 SHEETS-SHEET 4 7 lNVg/VTOR WW 9&

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J OHN T. HOWIESON, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, OF ONE- HALF TO nunnouons ADDING MACHINE ronarron or MICHIGAN.

COMPANY, OF DETROIT, MICHIGAN, A COR- RECORDING MECHANISM.

Specification of Letters Patent.

Patented Ma a, 1918.

Original application filed July 29, 1901, Serial No. 70,060. Divided and this application'iflled April 6 1916.

Serial No.

. New York, in the county-of New York'and State of New York, have invented certain. new and useful Improvements 1n Recording 'Mechanism, of which the following is a specification.

This application is a division of my prior application No. 70,060 (series of 1900) filed July 29, 1901, entitled Improvements in calculating machines, upon which Letters Patent N 0. 1,178,806 have been issued. The present invention relates to control of the hiking ribbon through which printing is done. The object is to provide an improved form of means for automatically effecting reversal in the direction of travel of the ribbon. It is carried upon two spools and suitably directed and guided adjacent the platen where it may be shifted into and out of the area through which the type strike. Power for feeding the ribbon lengthwise is supplied by the spring which propels the paper carriage, andl employ power derived from the same source for effecting the shifting of gearing through which the ribbon is wound upon one spool or the other, the ribbon itself timing the shift. Thus in accord ance with the present disclosure the ribbon is suitably equipped so that upon being completely unwound from one spool it will'unlatch a gear shaft and simultaneously pre-. sent an abutment for a projection on the shaft to encounter, with the result that the shaft will be shifted and ungeared from the connections for rotating that spool and geared to the connections for rotating the other spool, and the shaft will become latched in the shifted position.

In the drawings which accompany and form part of this specification, Figure 1 is a left side elevation of the machine of my prior application, the casing being partly broken away at the rear to disclose certain parts within; Fig. 2 illustrates the rear portion of said machine in front elevation; Fig. 3 is a horizontal section of the machine taken, substantially on the line 33 of Fig. 2; Fig. 4 is a horizor tal section taken on a higher plane on the line 4.-i of Fig. 1; Fig. 5 is a vertical section taken on the line 55 of T Fig. 3 looking in thedirection of thearrow. The reference numeral 37 designates the pointer cooperatitngwith a paper scale.

The guide proper consists of a flat plate' 50d having a slot 505 which is beveled on opposite sides. This guide is adjustably secured upon a verticalstrip 506 pivoted on a .ve'rtical frame or bracket 509 which is'mounted or secured to a main bracket 57 which extends underneath thecarriage mechanism. At its upper end this vertical bracket is open soas to receive the guide proper and prevent any lateral movement thereof. The lower end of the vertical strip which carries the guide piece is connected to the universal bail upon which the keys operate. Normally the guide and its ribbon are removed from immediate proximity to the printing point so that the writing is visible to the operator, but

just as soon as any writingkey, or in the present instance even a spacing key,.is depressedthe guide and ribbon will be thrown forward directly over the printing point and in the .path of movement of the type. (In case any of the type should be somewhat out of alinement the beveled or inclined sides of the slot in the guide will serve to bring such type in alinement and cause printing at the proper printing point. Consequently this guide also serves the purpose of preserving alinementl of the type.

The-ribbon is carried by two ribbon spools 46:2 and 463 mounted onbrackets 46d sup-- ported in any suitable way on the end of with a similar but horizontally arranged bevel gear 468 secured to the upper end of a tubular shaft 469 (Fig. 3) which carries at Y its lower end a bevel gear 470. This tubu lar shaft bears at its upper end in suitable bearings in the bracket 464, and within such tubular shaftis arranged a vertical rod 5' mechanisms for said spools comprising in connection with gears-on the spools, shafts having at one end a gear cooperating with.

the spool gears and having another gear at the other end; separate shafts adapted to drive the first named shafts; driving mechanism driven by the spring barrel; and means for shifting said driving mechanism into and out of cooperation with said secany one time, and means controlled bythe movement of the ribbon for operating said levers for shifting the driving pinion.

3. A ribbon movement comprising rotatable ribbon spools, separate driven mechanisms for said spools, driving mechanism comprising a shiftable shaft having a driving pinion, a stud on said pinion, levers adapted to cotiperate with the driving shaft and having projections adapted to be engaged by said stud, and means controlled by the movements of the ribbon for operating one or the other of said levers whereby the contact of'said stud with the projection of the particular operated lever Will cause the pinion to shift itself out of engagement with one of said driven mechanisms and into engagement with the other.

-l. A ribbon movement comprising rotatable spools, separate driven mechanisms for said spools, driving mechanism comprising a shiftable shaft having a dI'iVing pinion, levers controlled by the movements of the ribbon and adapted to cooperate with said shaft, said levers. having means for straddling said shaft, one of said levers cooperating with such shaft at any one time, and means whereby said shaft and its pinion is shifted when one or the other of said levers is operated.

A ribbon movement comprising rota- ,table ribbon spools, separate driven mechanisms for said spools, driving mechanism therefor comprising a shiftable shafthaving a driving pinion, levers cooperating with said driving shaft and when operated adapted to cause a shifting of the driving pinion, an operating arms adapted to be actuated by said ribbons and to operate said levers.

(i. A ribbon moveinent comprising rotatable ribbon spools, separate driven mechanisms for said spools, a driving mechanism comprising a shiftable shaft having a pinion adapted to cooperate with one or the other of the driven mechanisms, mechanism forv said s bon movements for shifting said drivingshifting said driving shaft, a pivoted reversing guide'or arm through which the ribbon normally passes, and a connection between such guide and said shifting mechanisms.

7 A ribbon movement comprising rota.-

table ribbon spools, separate driven mechanisms for said spools, a driving mechanism consisting of a shiftable shaft having a pinion adapted to cooperate with one or the other of the driving mechanisms, levers cc:

operating with the driving shaft and when operated adapted to shift the driving shaft, and reversing guides or arms throughwhich the ribbonjnorm'ally passes and adapted to be operated by the ribbon and a connection between said guide and levers.

8. A ribbon movement comprising rotatable ribbon spools, separate driven mecha nisms for said spools, a driving mechanism comprising a pivoted bearing bracket; a driving shaft bearin in said bracket and havin a driving pinion, means for rotating heft, mechanism controlled by the ribshaft."

9. A rbbon' movement comprising, in

combination with the usual spring barrel as a motor, rotatable ribbon spools, separate drlven mechanisms for said spools,a drlving mechanism adapted to cooperate with one.

or the other of the dri en mechanisms and comprising a pivoted bearing bracket, a

driving shaft bearing in said. bracket and having a driving pinion and also a gear, gearing connections between said spring barrel and said gear, and mechanism controlled by the ribbon movements for shifting said driving shaft,

10. A ribbon movement comprising, in combination with the usual spring barrel as a motor which has a driving gear and a pawl controlled ratchet, a pivoted bracket, a driving shaft in said bracket and having at one end a gear and at the other'end a pinion, a gear intermediate said driving gear and the gear on said-driving shaft, mechanism for shifting or swinging said driving shaft on the pivot of its bracket, rotatable ribbon spools, separate driven mechanisms for said spools, adapted to cooperate, one at a time, with the pinion on said driving shaft, and means for actuating said shifting mechanism. v 1i. A'ribbon movement comprisin rotatable ribbon spools, each having a beve ear, tubular shafts, one for each spool, each s aft having at one end abevel gear meshing with the bevel gearon the spools and at the other end another bevel gear, driven shafts havin bevel gears at both ends, one of the beve gears of said last named shafts meshing with 7 one of the bevel gears on the tubular shafts,

the two remaining bevel gears on said driven shafts arranged in proximity to each other,

a shiftable driving pinion arranged subst'an a (1 means rivirg M011 adapted me nther of sai admechanism co'opemt- 1A pinion, a rod passing ;ubu1;u shafts, a con- 1' em of said rod and u. reYersribbon and 20 *1 l 

